Sony Xperia Z3+ / Z4 Battery Replacement
If charging lasts only a few hours or the phone heats up and drains quickly, we can replace the battery in your Sony Xperia Z3+ / Z4 and test stability.
- Turnaround: Usually completed the same day where possible, typically 60 to 90 minutes.
- Warranty: 6-month warranty on battery replacements.
- Service options: Walk-in welcome near Liverpool Street, or use our UK mail-in option.
Next step: book this service now, or start with diagnosis if you are unsure what is wrong.
If you’re seeing any of these symptoms
- Battery warnings shown in settings
- Battery drops rapidly from mid charge
- Phone restarts randomly during use
- Battery drains quickly even on light use
- Phone shuts down at 10 to 30% or in the cold
- Swollen battery causing the screen to lift
- Overheating during normal use or charging
- Charge percentage stuck or jumps around
Why choose Square Repair?
- Established technicians and consistent processes since 2015
- Parts fitted with care, then tested before return
- Clear communication if we spot extra damage
- Near Liverpool Street for easy drop-in repairs
- Send-in option available, see how we work
- Warranty terms are on our guarantee page
What this repair includes
- Safe adhesive removal and reseal where applicable
- Checks for charging stability and thermal behaviour
- Basic clean-up during reassembly
- After-care guidance for better battery life
- Replacement battery fitted for your model
Our repair process
- 1. Select the service and check out, or start with diagnosis if needed.
- 2. Bring it in or send it to us using how we work.
- 3. We complete the work with careful fitting and attention to connectors and seals.
- 4. We test key functions and confirm everything is working as expected.
- 5. Collect or return shipping after testing. Warranty info: our guarantee page.
How to verify your exact device model
- In Settings, select About phone.
- Compare the model details to this page.
- If unsure, book diagnosis first.
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Get started today
Prefer mail-in? Follow how we work. Walk-ins near Liverpool Street are also welcome.